second-brain-starter

A notes system that an AI keeps organised for you. You save articles, books and conversations. Claude reads them, writes wiki pages that connect the ideas, keeps the links honest and tells you when something has gone stale or contradicts something else. You read it in Reflect on your Mac, and on your phone if you want.

It is a working copy of a system that has run daily since mid-2026 on a graph of about 1,500 notes. The pattern is Andrej Karpathy's "LLM wiki": raw sources stay frozen, an agent writes and maintains the wiki layer, and a schema governs how. This repo is the schema, the tools and a guided installer.

What you need

• A Mac. The schedules and permissions are macOS-only.
• A Claude Pro or Max plan. Claude Code is included with it.
• The Claude Code desktop app. Sign in when

it first opens.

open-source notes app. No account needed. Download the .dmg under the top entry and drag it to Applications.

• An hour or two, mostly waiting for downloads.

Everything else (git, Node, packages, a browser for capturing pages, a GitHub account and key for backups) the setup installs for you or tells you exactly what to click. You never type a password into Claude.

Setup, in three steps

• Install Claude Code and Reflect from the links above.
• Get this folder onto your Mac and put it somewhere permanent:
• Click the green Code button on this page, then Download ZIP.
• Double-click the ZIP in Downloads. Rename the folder it makes from